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October 17, 1988 



Performance Results 
Bench Mark Test 



The following is the data resulting from validation of 
random testing of the IRIS 3 024 Color Ink Jet Printer's 
performance. All data was mathematically computed from the 
equations and data contained in the interface guide and then 
validated. The results are as follows: 



Table 1 : 



Time to Print Full Image (minutes) 
24 Inches Across the Drum 



100 



Drum Speed (ips) 
150 200 



250 



200 


24.27 


16.40 . 


,12*47 


10.02 


Resolution 










(dpi) 300 


30.17 


20.38 


16.01 


12.50 



Notes: 



As the drum speed increases, the maximum number of 
droplets available per pixel will decrease. The user 
can select a drum speed which will allow maximum 
density requirements. Table 2 depicts the changes in 
maximum droplets. 



Table 2 : 

Maximum Number of Droplets/Pixel 
Drum Speed (ips) 
100 150 200 250 
200 



Resolution 

(dpi) 300 




At drum speeds above 220 ips, the autophase overhead 
(i.e., time to do autophase) affects the maximum raster 
length that can be printed without a performance 
degradation. Table 3 depicts the maximum raster length 
at drum speeds above 220 ips. 



Table 3 



Maximum Raster Length (inches) 
Without Overhead Degradation 



Drum Speed (ips) 



220 


230 


240 


250 


23.95 


23.90 


23.86 


23.81 



August 29, 1988 



Maximum Number of Droplets/Pixel 









Resolution 


(dpi) 








100 


200 


203 


240 


254 


300 


304 




31 


31 


31 


31 


31 


31 




110 


31 


31 


31 


31 


30 


29 




120 


31 


31 


31 


31 


27 


27 




130 


31 


31 


31 


30 


25 


25 




140 


31 


31 


29 


28 


23 


23 




150 


31 


31 


27 


26 


22 


21 




160 


31 


30 


26 


24 


20 


20 


Drum 

Speed 

(ips) 


170 
180 


29 
27 


28 
27 


24 
23 


23 
21 


19 
18 


19 
18 




" 190 


26 


25 


21 


20 


17 


17 




200 


25 


24 


20 


19 


16 


16-— 




210 


23 


23 


19 


18 


15 


15. 




220 


22 


22 


18 


17 


15 


14 




230 


21 


21 


18 


17 


14 


14 




240 


20 


20 


17 


16 


13 


13 




250 


20 


19 


16 


15 


13 


13